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75030572 = 2218757643
BaseRepresentation
bin1000111100011…
…10000000101100
312020011221121002
410132032000230
5123201434242
611240055432
71600515011
oct436160054
9166157532
1075030572
1139397641
1221164578
13127104b6
149d71708
1568c1432
hex478e02c

75030572 has 6 divisors (see below), whose sum is σ = 131303508. Its totient is φ = 37515284.

The previous prime is 75030559. The next prime is 75030583. The reversal of 75030572 is 27503057.

It is a super-3 number, since 3×750305723 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9378818 + ... + 9378825.

It is an arithmetic number, because the mean of its divisors is an integer number (21883918).

Almost surely, 275030572 is an apocalyptic number.

It is an amenable number.

75030572 is a deficient number, since it is larger than the sum of its proper divisors (56272936).

75030572 is a wasteful number, since it uses less digits than its factorization.

75030572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18757647 (or 18757645 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 75030572 is about 8662.0189332511. The cubic root of 75030572 is about 421.7736258078.

The spelling of 75030572 in words is "seventy-five million, thirty thousand, five hundred seventy-two".

Divisors: 1 2 4 18757643 37515286 75030572